Elements
Which Element is K?
Potassium
What is Group?
a vertical column (up and down) on the periodic table.
What is Isotopes
each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei,
Find the atomic # Cooper
29
atomic mass of Hellium
4.003
Which Element is Mt?
Meitherium
What are Noble Gases and where are they located on the periodic table?
Group 18 elements on the periodic table that contain 8 valence electrons (He has 2) and a full valence shell making them very stable and inert. All other atoms change their valence configurations to attain a full octet like the noble gases.
What are the two differences between between Electron and neutron?
Negative/ no charge
One is in the orbitun shell/ nucleus
Atomic number of mercury
80
atomic mass of Silver
107.9
Looking at the periodic table name the element on period 6 and Group 18
Rn ( Radon)
Explain Ion
is an atom that has gained or lost one or more electrons.
Describe Alkali Metals
Group 1 metals on the periodic table that contain 1 valence electron and lose their valence electrons the most easily, making them the most reactive metals.
atomic number of Tin
50
atomic mass of Titanium
47.88
What is the element symbol of Antimony
Sb
Define Metals elements
an element or substance that conducts heat and electricity, is malleable and ductile and has low ionization energy and low electronegativity values. Metals tend to lose their electrons to form cations. Metals are found on the left side of the boron staircase
Name three states of matter
Solids, liquids, gases
atomic number of hydrogen
1
atomic mass of Leah
207.2
Name 4 Metalloids elements from the periodic table
Any Element with grey color
Define Atomic Mass
the number of protons and neutrons in the nucleus of one atom of the element. Located under the elemental symbol (at the bottom of the element box on the periodic table).
Are two atoms of the same element identical?
No. Two atoms of the same chemical element are typically not identical. Since the states of the electrons in an atom are what determine the nature of the chemical bonding that the atom experiences, two atoms of the same element can react differently if they are in different states
Atomic number of Rubidium
37
atomic mass of Calcium
40.08